Immersion water heater



sept. 9 1924. 1,508,199,

F. THoRNToN,JR

IMMERSION WATER HEATER Filed Sept. 25. 1921 F/Jma. Fig. 4.

WMM j TTORNEY Patented Sept. 9, 1924.

(UNITED STATES FRANK THORNTON, JR., F MANSFIELD, OHIO, ASSIGNOB T0 WESTINGHOUSE ELEC-- i 1,508,199 PATENT OFFICE.

TRIO PRODUCTS COMPANY, A CORPORATION OF MICHIGAN.

IMMERSION WATER HEATER.

Application llled September 23, 1921. Serial No. 502,643.

To all whom it may concern.: Be it known that I, FRANK' THORNTON,

Jr., a citizen of the UnitedStates, and

f iiuid container, such as a tumbler, and I Bil provide also a Hat elongated switch housing secured to one end of the tubular member, which housing serves to su port the heater immediately after it has Ibeen withdrawn from the tumbler.

.In the single sheet of drawings,

Figure 1 is a view, in side elevation, of an immersion heater embodying'my invention as used in a tumbler; v

Fig. 2 is a view, in front elevation, of a heater embodying my invention;

Fig. 3 is a view, in side elevation, of ai heater embodying my invention located on a suitable supporting surface, and

Fig. 4 is a view, in end elevation, of the heater illustrated in Fig. 3. Y

An electrical immersion heater 5 comprises, in general, an elongated metal tube 6 within which is placed a resistor element 7 which may be insulated from the inner surface of the tubular member 6 by any suitable means, such as an inner layer of a suitable insulating material 8. The means 8 may be a flexible tube Or it may consist of a flexible enamel. If desired, the open space between the helically wound resistor member 7 and Vthe inner surface of the tubular resistor member 8. may be'illed with any suitable granular insulating material 9. Such filling will securely hold the resistor member 7 1n its proper operative position to the insulatino` member S as relativel well as t e adjacent turns o? the resistor out of contact with each other.

After the resistor member has been properly` laced within thetubular member 6, it ma bent to any suitable or desired figures of the drawing. It is desirable that the two end portions of the tubular member 6 be return-bent, substantially as illustrated in Figs. 1 and 3, for a purpose to be hereinafter set forth.

A suitable control switch 10. Acomprises two substantially 'similar housing arts 11 within which is located anysuitab e or desired tumbler switch mechanism, the Operating button 12 of which is illustrated in the drawing. Two bolts 13 and nuts 14 serve to securely clamp `the two housing parts 11 against each other and on the outer ends of the return-bent portions of the tubular member 6. A supply-circuit conductor 15 serves to ener 'ze the resistor,

member 7 whenever desire When in operation, the immersion heater may be placed in a tumbler 16 in which is a quantity 17 of water which it is desired to heat. After the immersion heater has been energized a sufficient length of time to cause the water to reach the desired temperature, the entire heater may be removed fromthe position illustrated in Fig. 1 by grasping the switch casing 10 and then placmg the heater on a supporting surface, substantially as illustrated in Fig. 3 of the drawing.

It may be noted that the device embodying my invention provides a relatively simple and inexpensive immersion heater lwhich may be handled by the operator without danger Ofburning the operator when handling the device immediately after removal from the iiuid container and that it provides mea-ns associated with the heater for supporting the' same on any suitable surface in a position which permits of allowin the heater to cool thereon.

arious modifications may be made in the device embodying my invention without departing'from the spirit and scope thereof and I desire that only such limitations shall be placed thereon as are imposed by. the prior art or are specifically set forth in the appended claims.

I claim as my invention: 1. In an electric Huid heater, the combina.- tion with a return-bent tubular heating element, of an elongated switch casin clamped over the ends o said element an eective to support said heatin element upon a supporting surface with t I e casing only in contact therewith.

same, of a switch easing-,operatively associated, with said heating element for permitting of resting it in an inoperative position on a supporting surface with the switch casing only in engagement therewith.

`In rtestimony whereof, I' have hereunto subscribed `my name this `12th day of Sept., 1921.

FRANK THORNTON, Jn. 

